22kaitlynkurth 22kaitlynkurth

18-11-2020
Mathematics

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Find the value of r so the line that passes through (-3,2) and (3,r) has a slope of -1/2
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ackahedem582 ackahedem582

18-11-2020

Step-by-step explanation:

gradient = (y2 - y1)/(x2 - x1)

-1/2 = (r - 2)/(3 - (-3))

-1/2 = (r - 2)/6

-1/2(6) = r - 2

-3 = r - 2

-3 + 2 = r

hence r = -1.

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